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1) When using fluorescence spectroscopy radiation is...

One answer only.

   Absorbed

   Emitted

   Absorbed then emitted

   Emitted then absorbed

HINT

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2) Relaxation to the lowest level of the excited state causes energy to be released as...

One answer only.

   Heat

   Light

   Heat and light

   Sound

HINT

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3) Relaxation to the ground level from the lowest level of the excited state causes emission of...

One answer only.

   a molecule

   an electron

   a neutron

   a photon

HINT

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4) Phosphorescence is emission of...

One answer only.

   heat after the exciting source is removed

   light after the exciting source is removed

   heat and light after the exciting source is removed

   none of the above

HINT

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5) What is the value of electron spin?

One answer only.

   0

   1/2

   1

   1 1/2

HINT